GET https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/en/media/974-vaults

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App\Entity\MediaTranslation
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App\Entity\MediaTranslation {#1390
  -id: 7133
  -title: "Vaults"
  -description: """
    <p>We are in the year 10 (CE), under the reign of Emperor Augustus. You are an architect in a prosperous city and the council has just hired you.&nbsp;The wooden bridge that spanned the river was washed away during the last flood. The city is rich and the job that the council gives you is to rebuild a stone bridge.<br />\r\n
    <br />\r\n
    Building a large stone structure is constraining. A large stone slab is heavy and it would break under its own weight. You have thought about multiplying the columns between each slab, but it would be as many obstacles to navigation. It is these same constraints that forces the use of multiple columns for the stability of temples such as the Parthenon of Athens or the temple of Apollo of Pompeii.</p>\r\n
    \r\n
    <p>Why not consider an arch structure?&nbsp;The &AElig;milius Bridge in Rome built in 179 BC. is an engineering feat that celebrates in its own way the glory of Rome. All major projects now include vaults: Whether for a palace, an aqueduct, an arena, a basilica, a bridge or thermal baths, all the cities of the empire must integrate arches and domes, especially to mark the entrances to the city and impress visitors. Huge triumphal arches will even be built to honor great victories.</p>
    """
  -legends: """
    Roman arch\r\n
    Gothic arch\r\n
    Lancet arch\r\n
    Flying buttress
    """
  -goals: """
    <ul>\r\n
    \t<li>To play with gravity.</li>\r\n
    \t<li>To understand a historical construction process.</li>\r\n
    \t<li>To discover different types of arches.</li>\r\n
    </ul>
    """
  -more: """
    <p>In architecture, a vaulted structure makes it possible to distribute the weight of the structure from the center to the edges where the <strong>abutments are located</strong>. It is ideal for a bridge.&nbsp;They are also economical benefits when it comes to raw materials. A huge aqueduct like the one in Segovia (Spain) seems to float in the sky like lace in the wind. Imagine this structure built as a traditional stone wall...</p>\r\n
    \r\n
    <p>The success of the project requires stones cut with great precision. We also call <strong>voussoir</strong> these cut stones.&nbsp;Each voussoir is placed one by one on a temporary wooden structure called a <strong>falsework</strong>. The strength of the structure depends on the care taken in the shape and positioning of each stone.&nbsp;</p>\r\n
    \r\n
    <p>Only when all the stones are in place can the falsework be removed. The wedge-shaped stone placed at the top of the arch is called the <strong>keystone</strong>. It is the stone that unites all the others. In reality, all stones are important for the stability of the structure, but the keystone is the only one to coordinate the balanced forces since it is on the axis of symmetry of the vault. It also seems that the keystone was often positioned first to make sure that the final structure will be symmetrical. Resizing a keystone is much riskier than resizing a voussoir.</p>\r\n
    \r\n
    <p>It is also necessary to fill the space around the vault. As can be seen with this simulation, even completed, a vault is still fragile as long as the entire structure is not put under pressure.</p>
    """
  -scenario: null
  -features: "<p>Build the vault using stones and a hanger.</p>"
  -publishedAt: DateTimeImmutable @1649635200 {#1387
    date: 2022-04-11 00:00:00.0 UTC (+00:00)
  }
  -preventIndexForSearch: false
  #locale: "en"
  #translatable: App\Entity\Media {#1308 …}
  #status: "published"
  #createdAt: DateTime @1635861972 {#1388
    date: 2021-11-02 14:06:12.0 UTC (+00:00)
  }
  #updatedAt: DateTime @1702659116 {#1389
    date: 2023-12-15 16:51:56.0 UTC (+00:00)
  }
}
Format: none
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[
  0 => "internal_api_media"
  "internal_api_media_options" => [
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]
MediaTranslationNormalizer (403.66 ms) 403.93 ms

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